class Mocha::ParameterMatchers::PositionalOrKeywordHash

def deprecation_warning(actual, expected)
  details1 = "Expectation #{expectation_definition} expected #{hash_type(expected)} (#{expected.mocha_inspect}),".squeeze(' ')
  details2 = "but received #{hash_type(actual)} (#{actual.mocha_inspect})."
  sentence1 = 'These will stop matching when strict keyword argument matching is enabled.'
  sentence2 = 'See the documentation for Mocha::Configuration#strict_keyword_argument_matching=.'
  Deprecation.warning([details1, details2, sentence1, sentence2].join(' '))
end

def expectation_definition
  return nil unless @expectation
  "defined at #{@expectation.definition_location}"
end

def extract_parameter(available_parameters)
  [available_parameters.shift, available_parameters.empty?]
end

def hash_type(hash)
  ruby2_keywords_hash?(hash) ? 'keyword arguments' : 'positional hash'
end

def initialize(value, expectation)
  @value = value
  @expectation = expectation
end

def matches?(available_parameters)
  parameter, is_last_parameter = extract_parameter(available_parameters)
  return false unless HasEntries.new(@value, exact: true).matches?([parameter])
  if is_last_parameter && !same_type_of_hash?(parameter, @value)
    return false if Mocha.configuration.strict_keyword_argument_matching?
    deprecation_warning(parameter, @value) if Mocha::RUBY_V27_PLUS
  end
  true
end

def mocha_inspect
  @value.mocha_inspect
end

def ruby2_keywords_hash?(hash)
  hash.is_a?(Hash) && ::Hash.ruby2_keywords_hash?(hash)
end

def same_type_of_hash?(actual, expected)
  ruby2_keywords_hash?(actual) == ruby2_keywords_hash?(expected)
end